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Big Ideas Math: Modeling Real Life, Grade 7

BI

Big Ideas Math: Modeling Real Life, Grade 7 View details

5. Dividing Rational Numbers

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Exercise 7 Page 77

Terms are separated by + or - signs. Coefficients are numbers that are multiplied by variables. Constants are numbers with no variable factors.

Terms: 42m, 18, and 12c^2
Coefficients: 42 and 12
Constants: 18

Practice makes perfect

An algebraic expression is a combination of numbers, variables, and mathematical operations. Terms are separated by + or - signs. With this information in mind, let's identify the terms in the given expression. 42m + 18 + 12c^2

We can see that the expression has three terms, 42m, 18, and 12c^2. Next, we will identify the coefficients and constants. A coefficient is a number that is multiplied by a variable or variables. A constant is a number with no variable factors. 42m+ 18z+ 12c^2 The expression has two coefficients, which are 42 and 12, and a constant, which is 18. Let's organize this information in a table.

Terms	Coefficients	Constants
42m, 18, and 12c^2	42 and 12	18

Subchapter links

Try It p.74-75

Self-Assessment for Concept & Skills p.75

Self-Assessment for Problem Solving p.76

Review & Refresh p.77

Concept, Skills, & Problem Solving p.77-78